• Original images
• Rotated/scaled/roughly aligned images, 16000x14000 each, the dist-*.sh scripts are the generating scripts
• Google map of the aligned images

Die shots by John McMaster.

If someone wants to refine the alignement, beware that the vectorization is aligned to the m68000-m-3.png image, which should not change.

• Compressed SVG, 42M uncompressed, updated oct 3, md5 8dabcc191d1e9ef12fa6f7577c9f8a04.

The svg uses m68000-m-3.png as background, which should be in the same directory. Beware that inkscape uses 5+G of ram to open and display it.

Six layers with its own style for each: active (blue), polysilicon (red), buried contacts (pink), metal (black), vias (white/grey), capacitors (dark green).

Metal layer was done by Quietust, everything else by me, Olivier Galibert.

• Circuit generation programs

generate-bitmask-images generate six pbm (bitmap) images (one per layer) using librsvg for the rendering (27M each)

generate-circuit generates the mosfets, the capas, the circuits, etc from the bitmaps. It generates a layers.map file for circuit lookup (2.6G) and a m68000.txt file with the circuit description.

• layers.map and m68000.txt, compressed (8M, expands to 2.8G)

The m68000.txt is a columns-based text file, with the number of entries and the block name at the start of each block. Blocks and columns are:

• circuits (basic elements seen on the die)
  • circuit id
  • circuit type (a=active, p=poly, m=metal, b=buried, t=transistor gate, c=capacitor)
  • net id of which the circuit is part of, net id of the active layer for capas
  • net id of the poly layer for capas, -1 for everything else
  • x0, y0, x1, y1 coordinates of the bounding rectangle of the circuit, y=0 at bottom (as in inkscape)
  • surface of the circuit in pixels
  • list of neighbouring (touching) circuits, under the form <type><id> (like b179)
• nets (groups circuits electrically linked together)
  • net id
  • list of circuits ids (without the types)
• transistors
  • transistor id
  • circuit id of the gate
  • x position of the “center” of the gate
  • y position of the “center” of the gate
  • net id of one terminal
  • net id of the gate
  • net id of the other terminal
  • length/width ratio of the transistor

• mview, linux/Qt program that displays the circuit and allows interactive simulation
• mplay, linux program that does things with the circuit info (sanity checks, microcode dumping…)
• [[http://dspnet.fr/~galibert/m68k/pins.txt|pins.txt], net naming file

Note that the simulation program is essentially digital, with the side effect that relatively important things like the clock do not work.